The end of the world may be coming as early as this weekend, or maybe in October, according to Christian numerologist David Meade.

Meade has made claims, in YouTube videos and in a book, that the world is going to face a cataclysm and possibly end on Sept. 23 or Oct. 15 or later, relying on Biblical readings and invoking “Planet X,” a supposed hidden planet near to the Earth.

Meade said in an email to the Independent Mail that it would take a book, or a supercomputer, or God, to explain his astronomical cryptography calculations but they build on the eclipse that happened in August along with certain numbers that appear in the Bible.

He cautioned that Sept. 23 is the end of the "Church Age" and is a spiritual sign but that later events in October would escalate with Oct. 21 being "the final date."

"There is no mistaking which nation was targeted by the August 21 eclipse because it only passed over one, the United States," Meade said. "That was last month and since then we have yet to make it through one whole week without a significant life-threatening event." He cited hurricanes, North Korean missile tests and forest fires.

It’s all rubbish, said Duilia de Mello, a Catholic University of America astronomer and research associate at NASA’s Goddard Space Flight Center.

“Be skeptical because that’s such a strong prediction,” she said. “The Bible is a book for many things but not for predictions of this nature.”

NASA has denied the existence of such a planet so near to Earth, but the space agency does point to recent research that have theorized that a planet lurks far out in our solar system, taking 10,000 years or longer to orbit the sun. The exisitance of a Planet X has not been proven and the theories, from the California Institute of Technology, are based on modeling and limited observation, according to NASA.

De Mello said there is even clearer evidence that a planet is not lurking nearby, undiscovered.

“We’d have been able to see it during the eclipse,” she said. “It would have been close enough and would not have been behind the sun, the sun wouldn’t have been too bright at that time. We all saw it. There is no extra planet near us."

De Mello said Meade also appears to be basing what calculations he is using, his published numerology, off of our current Gregorian calendar which was not introduced until 1582, far after the dates and numbers were published in the Bible.

"It's so sad that people would take the opportunity to try to scare people," she said. "To use selective passages of the Bible to try to scare people, that's not what it is for."

Steve Ruskin, a historian of astronomy and author, said this is another in a long line of hoaxes.

There is all the incentive in the world for astronomers to discover and confirm the existance of another planet, he said. The lack of any credible evidence for a hidden planet, when scientists can detect asteroids of only a few miles wide beyond Pluto, shows that planets are easy to find, Ruskin said.

There have been hundreds, if not thousands of end-time predictions just in American history, he said.